For sale a home made tire changer that I used for changing my motorcycle tires. The rear tire on my bike is 190/50/17 and it works just fine.
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The kit includes the bead breaker unit, the mount and dis mount rim with mounting board. The unit can be mounted to a heavy table or picnic table with c-clamps. The only things that you will need is some tire spoons and a remove/install bar for the tire.